Standard Specification for Steel, Sheet and Strip, Hot-Rolled, Carbon, Structural, High-Strength Low-Alloy and High-Strength Low-Alloy with Improved Formability

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1.1 This specification covers hot-rolled structural, high strength-low alloy, and high-strength low-alloy with improved formability steel sheet and strip, in coils and cut lengths.
1.2 Hot rolled steel sheet and strip is available in the designations as listed in 4.1.
1.3 This specification is not applicable to the steel covered by Specification A635/A635M.
1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other.

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ASTM A1011/A1011M-01a - Standard Specification for Steel, Sheet and Strip, Hot-Rolled, Carbon, Structural, High-Strength Low-Alloy and High-Strength Low-Alloy with Improved Formability
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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
An American National Standard
Designation: A 1011/A 1011M – 01a
Standard Specification for
Steel, Sheet and Strip, Hot-Rolled, Carbon, Structural, High-
Strength Low-Alloy and High-Strength Low-Alloy with
1
Improved Formability
This standard is issued under the fixed designation A 1011/A 1011M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Terminology
1.1 This specification covers hot-rolled structural, high 3.1 Definitions—For definitions of other terms used in this
strength-low alloy, and high-strength low-alloy with improved specification refer to Terminology A 941.
formability steel sheet and strip, in coils and cut lengths. 3.2 Definitions of Terms Specific to This Standard:
1.2 Hot rolled steel sheet and strip is available in the 3.2.1 aging—loss of ductility with an increase in hardness,
designations as listed in 4.1. yield strength, and tensile strength that occurs when steel,
1.3 This specification is not applicable to the steel covered which has been slightly cold worked (such as by temper
by Specification A 635/A 635M. rolling) is stored for some time.
1.4 The values stated in either inch-pound units or SI units 3.2.1.1 Discussion—Aging also increases the tendency to-
are to be regarded separately as standard. Within the text, the ward stretcher strains and fluting.
SI units are shown in brackets. The values stated in each 3.2.2 stabilization—the addition of one or more nitride or
system are not exact equivalents; therefore, each system must carbide forming elements, or both, such as titanium and
be used independently of the other. columbium, to control the level of the interstitial elements
carbon and nitrogen in the steel.
2. Referenced Documents
3.2.2.1 Discussion—Stabilization improves formability and
2.1 ASTM Standards:
increases resistance to aging.
A 370 Test Methods and Definitions for Mechanical Testing 3.2.3 vacuum degassing—a process of refining liquid steel
2
of Steel Products
in which the liquid is exposed to a vacuum as part of a special
A 568/A 568M Specification for Steel, Sheet, Carbon, and technique for removing impurities or for decarburizing the
High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled,
steel.
2
General Requirements for
4. Classification
A 569/A 569M Specification for Steel, Carbon (0.15 Maxi-
3
mum, Percent), Hot-Rolled Sheet and Strip Commercial 4.1 Hot-rolled steel sheet and steel strip is available in the
A 622/A 622M Specification for Drawing Steel (DS), Sheet following designations:
3
and Strip, Carbon, Hot-Rolled 4.1.1 Commercial Steel (CS Types A, B, and C),
A 635/A 635M Specification for Steel, Sheet and Strip, 4.1.2 Drawing Steel (DS Types A and B),
2
Heavy-Thickness Coils, Carbon, Hot Rolled
NOTE 1—CS Type B and DS Type B describe the most common
A 749/A 749M Specification for Steel, Strip, Carbon and
product previously included, respectively, in Specifications A 569/
High-Strength, Low-Alloy, Hot-Rolled, General Require-
A 569M and A 622/A 622M.
2
ments for
4.1.3 Structural Steel (SS grades 30[205], 33[230], 36[250]
A 941 Terminology Relating to Steel, Stainless Steel, Re-
Types 1 and 2, 40[275], 45[310], 50[340], and 55[380]),
4
lated Alloys, and Ferroalloys
4.1.4 High-Strength Low-Alloy Steel (HSLAS, classes 1
and 2, in grades 45[310], 50[340], 55[380], 60[410], 65[450],
and 70[480].
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
4.1.5 High-Strength Low-Alloy Steel with Improved Form-
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.19 on Steel Sheet and Strip.
ability (HSLAS-F grades 50[340], 60[410], 70[480], and
Current edition approved Sept. 10, 2001. Published October 2001. Originally
80[550]).
published as A 1011/A 1011M-00. Last previous edition A 1011/A 1011M-01.
2 4.1.5.1 HSLAS-F steel has improved formability when
Annual Book of ASTM Standards, Vol 01.03.
3
Discontinued; see 2000 Annual Book of ASTM Standards, Vol 01.03. Replaced compared to HSLAS. The steel is fully deoxidized, made to a
by A 1011/A 1011M.
fine grain practice, and includes microalloying elements such
4
Annual Book of ASTM Standards, Vol 01.01.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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A 1011/A 1011M
as columbium, vanadium, and zirconium. The steel may be 5.1.12 A report of heat analysis will be supplied, if re-
treated to achieve inclusion control. quested, for CS and DS. For materials with required mechani-
cal properties, SS, HSLAS, and HSLAS-F, a report is requir
...

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